DE699297C - Process for cooling the punctiform focal point of an anode of a X-ray tube made of thin sheet metal by means of a cooling gas - Google Patents

Process for cooling the punctiform focal point of an anode of a X-ray tube made of thin sheet metal by means of a cooling gas

Info

Publication number
DE699297C
DE699297C DE1934SC104909 DESC104909D DE699297C DE 699297 C DE699297 C DE 699297C DE 1934SC104909 DE1934SC104909 DE 1934SC104909 DE SC104909 D DESC104909 D DE SC104909D DE 699297 C DE699297 C DE 699297C
Authority
DE
Germany
Prior art keywords
cooling
anode
cooling gas
focal point
sheet metal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DE1934SC104909
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HERBERT SCHOEN DR MED
Original Assignee
HERBERT SCHOEN DR MED
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by HERBERT SCHOEN DR MED filed Critical HERBERT SCHOEN DR MED
Priority to DE1934SC104909 priority Critical patent/DE699297C/en
Application granted granted Critical
Publication of DE699297C publication Critical patent/DE699297C/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J35/00—X-ray tubes
    • H01J35/02—Details
    • H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
    • H01J35/08—Anodes; Anti cathodes
    • H01J35/12—Cooling non-rotary anodes
    • H01J35/13—Active cooling, e.g. fluid flow, heat pipes

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Sampling And Sample Adjustment (AREA)

Description

Verfahren zur Kühlung des punktförmigen Brennfleckes einer aus dünnem Blech bestehenden Anode einer Röntgenröhre mittels eines Kühlgases Es ist bekannt, die an der Anode einer Röntgenröhre entstehenden Wärmemengen mit Hilfe eines an der Rückseite des Anodenblechs, entlang strömenden Kühlgases unschädlich zu machen. Als Kühlgas verwendet man entweder seinen durch .einen Ventilator erzeugten Luftstrom oder man führt Luft oder Kohlensäure durch ein ziemlich weites Rohr in das Innere einer rohrförmigen Anode ein. Diese bekannten Kühlvorrichtungen versagen bei den modernen Röntgenröhren, die mit großer Stromstärke belastet werden und bei denen der Brennfleck punktförmig ausgebildet ist. Hier werden an kleinstem Ort in kürzester Zeitenorme Wärmemengen entwickelt, die das Anodenblech, selbst wenn es aus Wolfram o: dgl. besteht,, in kürzester. Zeit zum Durchbrennen bringen.Method for cooling the punctiform focal point from a thin one Sheet metal anode of an X-ray tube by means of a cooling gas It is known the amount of heat generated at the anode of an X-ray tube with the help of an the back of the anode plate, to render harmless along flowing cooling gas. Either the air flow generated by a fan is used as the cooling gas or air or carbon dioxide is fed into the interior through a fairly wide pipe a tubular anode. These known cooling devices fail in the modern X-ray tubes that are loaded with high amperage and where the focal point is punctiform. Here in the smallest place in the shortest Huge amounts of heat are generated by the anode sheet, even if it is made of tungsten o: like. consists, in the shortest. Make time to burn through.

Gegenstand der Erfindung ist ;ein Verfahren zur Kühlung des punktförmigen Brenniieckes .einer aus dünnem Blech bestehenden Anode einer Röntgenröhre mittels eines Kühlgares, das aus einem auf der Außenseite des Anodenblechs angeordneten Rohr auf 'äie dem Brennfleck gegenüberliegende Seite des Anodenblechs geleitet wird, dessen Kennzeichen darin besteht, daß das Rohr am Ende als Düse mit kleiner Öffnung "ausgebildet ist, durch die das Kühlgas mit möglichst hoher Geschwindigkeit austritt, und das dieses Rohr umgebende, das Kühlgas abführende Rohr einen im Verhältnis zur Düsenöffnung großen Querschnitt. hat. Infolge der hohen Geschwindigkeit trifft ein wesentlicher Teil des Kühlgases unmittelbar auf. das zu kühlende Anodenblech auf, so daß der beste Wärmeübergang erreicht wird. In der beiliegenden Zeichnung ist eine erfindungsgemäß ausgestaltete Anode dargestellt. Das hohle Anodenrohr trägt die dünnen Folien a, auf , der der Brennfleck entsteht. In das Innere des Anodenrohrs reicht ein Rohr hinein, welches in der Nähe der Folie a auf der Gegenseite des Brennfleckes in. ,einer Düse q: kleiner Öffnung endet. Der Luft- oder Gasstrom wird dem Innern des Rohres 3 zugeführt, trifft nach dem Verlassen der Düse q. mit höchster Geschwindigkeit auf die -Folienrückseite am Ort des Brennfleckes auf und verläßt das Anodenrohr durch den weiten Hohlraum 5. Das durch das Rohr 3 zugeführte Kühlgas ist vorgekühlt. Die Kühl-Wirkung kann durch Veränderung der Gasgepchwindigkeit eingestellt werden.The invention relates to a method for cooling the punctiform Brenniieckes .einer anode consisting of thin sheet metal of an X-ray tube by means of a cooling cooker, which consists of a arranged on the outside of the anode plate The pipe is directed to the side of the anode plate opposite the focal point, its characteristic is that the tube at the end as a nozzle with a small opening "is designed through which the cooling gas exits at the highest possible speed, and the pipe surrounding this pipe, discharging the cooling gas, a relative to the Large cross-section nozzle opening. Has. As a result of the high speed arrives essential part of the cooling gas immediately. the anode sheet to be cooled on, so that the best heat transfer is achieved. In the accompanying drawing is an anode designed according to the invention is shown. The hollow anode tube carries the thin foils a, on which the focal point is created. Inside the anode tube A pipe extends into it, which is close to the foil a on the opposite side of the focal point in., a nozzle q: small opening ends. The air or gas flow becomes the interior of the pipe 3 supplied, meets after leaving the nozzle q. at the highest speed on the back of the film at the location of the focal point and leaves the anode tube through the wide cavity 5. The cooling gas supplied through the tube 3 is pre-cooled. The cooling effect can be adjusted by changing the gas speed.

Claims (1)

PATENTANSPRUCH:-Verfahren zur Kühlung des punktförurigen Brennfleckes einer aus dünnem Blech bestehenden Anode- einer Röntgenröhre mittels eines Kühlgases, das aus ,einem auf der Außenseite des Anodenblechs angeordneten Röhr .auf die dem Brennfleck gegenüberliegende Seite des Anodenblechs geleitet wird, dadurch gekennzeichnet, daß, das Rohr am Ende als ` Düse mit kleiner Öffnung ausgebildet ist, durch die das Kühlgas mit möglichst hoher Geschwindigkeit austritt, und das dieses Rohr umgebende, das Kühlgas abführende Rohr einen im Verhältnis zur Düsenöffnung großen Querschnitt hat.PATENT CLAIM: -Process for cooling the point-like focal point an anode made of thin sheet metal - an X-ray tube using a cooling gas, that from, a tube arranged on the outside of the anode sheet Focal spot opposite side of the anode plate is passed, characterized in that that the tube is designed as a `nozzle with a small opening at the end through which the cooling gas emerges at the highest possible speed, and that surrounding this pipe, the pipe discharging the cooling gas has a large cross-section in relation to the nozzle opening Has.
DE1934SC104909 1934-08-11 1934-08-11 Process for cooling the punctiform focal point of an anode of a X-ray tube made of thin sheet metal by means of a cooling gas Expired DE699297C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1934SC104909 DE699297C (en) 1934-08-11 1934-08-11 Process for cooling the punctiform focal point of an anode of a X-ray tube made of thin sheet metal by means of a cooling gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1934SC104909 DE699297C (en) 1934-08-11 1934-08-11 Process for cooling the punctiform focal point of an anode of a X-ray tube made of thin sheet metal by means of a cooling gas

Publications (1)

Publication Number Publication Date
DE699297C true DE699297C (en) 1940-11-26

Family

ID=7447824

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1934SC104909 Expired DE699297C (en) 1934-08-11 1934-08-11 Process for cooling the punctiform focal point of an anode of a X-ray tube made of thin sheet metal by means of a cooling gas

Country Status (1)

Country Link
DE (1) DE699297C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967682C (en) * 1951-03-11 1957-12-05 Dr Rolf Hosemann X-ray tube for dermatological therapy
WO1992020090A1 (en) * 1991-04-30 1992-11-12 Jules Hendrix X-ray tube
CN109817499A (en) * 2019-02-01 2019-05-28 中国科学院电子学研究所 High power density water cooling anode

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE967682C (en) * 1951-03-11 1957-12-05 Dr Rolf Hosemann X-ray tube for dermatological therapy
WO1992020090A1 (en) * 1991-04-30 1992-11-12 Jules Hendrix X-ray tube
CN109817499A (en) * 2019-02-01 2019-05-28 中国科学院电子学研究所 High power density water cooling anode

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